Stove frame



Patented Mar. 27, 1923.

' nuire srAras PATENT ori-ica RUDOLPH HOFFMAN, 0F QKANKAKEE,` ILLINOIS, ASSIGNOR TO SEARS, ROEBUCK AND CO., OF CHICAGO, ILLINOIS, A CORPORATION OF' NEW YORK.

STOVE i FRAME.

Application led .Tune 19y 1920. Serial` No. 390,058.

Y y all whom 'it may concern Beit known that I, RUDOLPH HOFFMAN, `a citizen of theUnted States, residing at Kankakee, in the county of Kankakee and State of Illinois, have invented certain new and useful Improvements in Stove Frames,

of which the following is a specification.

The invention relates in general to stove construction and has particular reference to the Vconstruction of frames employed in the stove structure, the aim of the invention being to provide a frame which may be constructed wholly! of sheet metal in a novel and advantageous manner.

The principal object of the invention is to provide a frame whichmay be cheaply manufactured and which presents when completed a neaty appearance and is of a very rugcred character.

The object of the invention thus generally stated, together with other and ancillary advantages, is attained by the construction and arrangement shown in the accompanying drawings formingpart hereof, in which Figure 1 is a view in elevation showing my improved frame construction for a stove top.

. Fig. 2 is a fragmentary under side view on an enlarged scale illustrating the construction of the frame at the forward corners thereof. Fig. 3 is -a similarview, but showing the framey construction at the rear corners thereof. Fi s. 4 and 5 are respectively sectional views talren on lines 4-4 and 5-5 of Figs. 2 and 3.

In carryin out my invention I form the frame from c annel bars constructed wholly` from sheet metal made in convenient lengths from strips bent along parallel longitudinal lines to provide abase portion or main wall and flange ortions or side walls, the flanges being doub edupon themselves to provide a rigid construction. Portions of the main and side walls of the channel bars are cut away to 'permit of the bending of the bar` strip. Between the front bar 7 and the side" y bars 9 I provide a joint, shown particularly in Fig. 2; and between the side bars 9 and the rear bar 8 a joint, shown particularly in Fig. 3, is employed. l

Each of the side bars of the frame is of U-shape or channel formation comprising a main or. base 'portion constituting in the present instance the top wall, and edge or iange portions constituting side walls. As shown in Figs.`l and 2, the main or top wall for the forward and side bars 7 and 9 is designated by the numeral 10 and the side walls of said bars by the numerals lljand 11a;

and, as shown in Figs. 3 and 5, the top wall' of the rear bar 8 is designated by the numeral 12, and 13 and 13a indicate the side walls of said bar. The outer side walls have inturned portions 14. and the inner side walls h ave inturned portions'v 14a. This construction, while strengthening the bars,readily lends itself tothe formation of rigid joints between the side` and front and rear bars as will presently appear. e y s The joints `between theopposite ends of the front bar 7 and the side bars 9 are formed by cutting away V-s'haped portions or notches from the channel strip from which said bars are formed, and also por` tions of the inner wall of the strip to permit the. bending of the strip into rectangular formation with the edge of the notches abuttino. Said notches are formed in the top wals of the channels and the inturned por-` tion of the outer side wall of the channel is sev-ered as shown at llbin Fig. 2. In cutting the inner wall 11a of the channel to permit of the bendin of the strip, a portion of the inturned gold 14a is 'left at one side of the :notch` so asto provide a tongue 11c (Fig. 2) which is adapted to be bent into engagement with the inturned fold 1311 of the inner wall 13a of the adjacent side bar when the parts are bent into rectangular form, as shown in Figs. 1 and 2. When the parts are thus bent into thek desired form, they are secured together by electric welding, a suitable strip of fusible metal being inserted between the abutting edges of the joint in the top wall of the channel in order that the top walls of the adjoining lbars may be effectively secured together in a rigid integral structure. ITo further strengthen the frame the tongue 11c is bent into engagement with the inner wall of the adjoining bar and secured to the inner side thereof by welding.

At their ends, the side bars 9 are provided with end walls 10n adapted to abut the opposite ends of the outer'channel wall 13 of the rear bar 8. Said end walls. are made from the channel strips by bending the rear end portions of the bases 10 on transverse lines inwardly into the channels (Figs. 1 and Preferably the end walls are also made of double thickness providing inturned portions 10i. The abutting ends of said portions 10F and the inturned portions 14 of the outer channel wall 13a of the side bars are `cut asshown at 14th (Fig. 3)so as to interfit, and the joint formed is preferabl made rigid as by welding.

Iii forming the'L joint between the rear ends of the side bars 9 and the rear bar 8, a notch 15 is preferably provided in the top walls l10 of the side bars 9 andthe opposite ends of the bar 8 are shaped to provide projectingportionsy 16 adapted to it neatly in said notches 15. To secu'rethe side walls off the adjoining Vbars 8 and 9 together, the

inturned portion' 10@ of the channel end rwall and the inturned portionv 14a of the inner l 16 iscompleted by electric welding, a strip of suitable metal being inserted between the abutting edges `of lthe walls, as in the caseof the joints between the front and side bars.

`It will be seen that I have produced a frame of relatively simple construction which may bey made wholly from sheet metal, so that it may be cheaply manufactured. Moreover, itis of a very vrugged character and at the'same time presents a` neat and finished appearance. p l

It' is to be' understood that while the invention is illustrated and described' with considerable particularity, it is contemplated that various changes may be made without departing from the spirit and scope o'f the invention asy expressed in the following claims.

`I claim' as my invention:

l. A stove top comprising a plurality of bars arranged in rectangular form and formed from two strips of sheet metal each bent into channel form, one of said strips providing the 'front and side bars of the top and the other one of said strips providing the rear bar ofthe top, the first-mentioned strip having portions cut away to permit of the bending of the side barsY with-reference to the front bar, means for: securing the front bar and side bars together into a rigid structure, the rear ends of said side bars and the rear ends of the side bars, the securing means for the several bars including securing members provided by the side Walls of the channels.

2. A stove frame having sidemernbers formed of sheet metal of relatively'` light 75 gauge and/bent into channel form with top walls and` depending side walls, the top walls of adjoining members being secured `togetherin abutting edgefto edge'v relation by welding, and the side walls 'being formed" 80 j from portions lof vsubstantial*width ftlded inwardly upon `themselves to produce a double thickness with "a rounded lower edge, the corresponding side walls ofthe' adjoin' ing members being also rigidlyv secured t`ogetherby welding. j j

3. A stove frame havingPIA side' 'members formed ofv sheet metal of relatively light gauge and bent into channel form with top' walls and depending side walls, the top W11S`90 of adjoining members being frigidly secured' in abutting edge to edge'relation by welding, and the side walls being` formed from p'ortions of substantial width bent or folded i-nwardly uponthemselves'to provide double" 96 4. A stove frame' having side member'sloo.

formed of sheet metal of relatively light' gauge and bent into channel form with top walls and depending side wallspth'e top walls of adjoining members being secured" together in abutting edge to 'edge relation'by 105 welding,and the v outer' side walls being formed from portions of substantial width folded inwardly upon themselves' to produce a. kdouble thickness with a "rounded:v lower edge the Correspodlng side" walls: of' theilo adjoining members being also rigidly secured" together by welding.

In testimony whereof, I have'hereuntoset my hand.`

RUDOLPH i-rorFM-AN. 

